TM 3-6665-268-10
b. Survey suspected area with a radiac survey
remove the paper clip (C) and spacer (B).
meter. If survey meter indicates radioactivity, locate and
(2) Fold up the bottom of the bag three times
isolate hot spots, and record time, location, and radiation
and fasten the fold with the paper clip.
intensity. Collect samples of radioactive material (para
(3) Scoop a thin layer (not more than one-half
inch) of top soil from a small area into the bag. Do not
c. Scan the area for sources of suspected
fill the bag more than one-fourth full.
chemical and biological contamination such as:
(4) Fold down the top of the bag three times
(1) Oily drops, liquid splashes, gelatinous
and seal the bag with the tie straps.
masses, particles of powder or solids on surfaces, on
(5) Place the sample in the soil kit.
vegetation, and on the ground.
(6) Discard the scoop after all samples have
(2) Oily or fluorescent streaks or dark
been collected.
coloration on water or on hard surfaces.
(3) Wet stains or haze on porous surfaces.
Note. Process the soil sample (para 16) as
(4) Debris in shell or bomb craters.
soon as possible after it has been collected to
(5) Enemy ammunition components, aerosol
prevent deterioration of chemical agent in the
dissemination equipment, spray guns, flasks, vials,
sample.
unusual types of bombs or shells (compressed-air type).
(6) Wilted or discolored plants or flowers, and
b. To collect samples on surfaces:
unusual number of dead animals or fish.
(1) Remove the seal and cap from an
d. Screen suspected sources (c above) with ABC-
extraction fluid bottle (3, fig. 2), and using a fresh
M8 VGH chemical agent detector paper for gross
applicator (5), each time, repeat (2) through (56 below
chemical agent contamination as described below. If the
four times.
presence of chemical agent is not confirmed with the
(2) Dip an applicator into the bottle to wet it.
detector paper, collect samples from two or three of the
(3) Roll or rub the tip over a small area of the
suspected sources for chemical and possible biological
surface.
agent analysis:
(4) Place the applicator tip in the extraction
(1) Tear out a sheet of ABC-M8 detector
fluid bottle; then snap off the upper part of the applicator.
paper from the book.
(5) When sampling is completed, recap and
(2) Hold it in contact with suspected source
reseal the bottle.
for approximately 10 seconds. (For suspected water,
put a drop of water on the paper.)
Note. If contaminated foliage or twigs are
(3) Compare any color change with colors
used for sampling, dip them in the extraction fluid
printed on the inside cover of the book.
(Some
several times and then discard them. Handle the
gasoline's, diesel fuels, organic solvents, and cleaning
foliage or twigs carefully to prevent them from
solutions may give false positive tests.)
falling into the liquid.
(a) A yellow color indicates G agent.
(b) A red color indicates mustard (H).
c. To collect water samples:
(c) A green color indicates V agent.
(1) Use a soil collection bag and scoop to
(d) No apparent color change indicates
collect a water sample, free of debris if possible.
either no agent or a concentration of agent too low to be
(2) Scoop approximately 55 milliliters (2
detected with the detector paper.
ounces) of suspected water into a soil collection bag.
(3) Fold down the top of the bag three times.
12. Chemical Agent Sampling
Seal the bag with the attached tie straps.
(4) Wrap a tie (7, fig. 2) tightly around the bag
Collect all chemical agent samples that may be required.
approximately one-fourth of the distance from the top of
Mark them for identification with date, time, location, and
the bag.
sample number. Forward the samples to the General
(5) Rinse the outside of the bag with
Chemical Laboratory (FM 21-40) for analysis.
uncontaminated water, if available, and place the bag
into a second soil collection bag. Seal it in the same
a. To collect a soil sample:
manner as the bag containing the sample.
(1) Unroll a soil extraction bag (4, fig. 2) and
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